Microsoft MEC
Mixed Use Property in New York City, NY · 677 5th Avenue · 10022
At a glance
Microsoft MEC is a 34,182-square-foot mixed use property building at 677 5th Avenue in New York City, New York, built in 1925. In its 2024 New York City benchmarking disclosure it reported a site energy-use intensity of 167.4 kBtu/ft² and 656 tCO₂e of greenhouse-gas emissions.
Local Law 84 (LL84) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 167.4 kBtu/ft² |
| Source EUI | 466.5 kBtu/ft² |
| GHG emissions | 656 tCO₂e |
| GHG intensity | 19.2 kgCO₂e/ft² |
| Electricity | 1,662,955 kWh |
| Water use | 693 kgal |
| Gross floor area | 34,182 sq ft |
| Source record | nyc:23242619:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 167.4 kBtu/ft² | 656 tCO₂e | |
| 2023 | 1 | ±0 | 189.3 kBtu/ft² | 641 tCO₂e |
| 2022 | 1 | 204.2 kBtu/ft² | 534 tCO₂e |
Compliance context
Local Law 84 (LL84)
Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 677 5th Avenue
- City
- New York City
- State
- New York
- ZIP
- 10022
- Coordinates
- 40.76063, -73.97566
Within ~1 km
Nearby benchmarked buildings
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Mixed Use Property · 2,797,249 sq ft
Mixed Use Property · 2,797,249 sq ft
Mixed Use Property · 2,797,249 sq ft
See also: most efficient in New York City · biggest emitters
How does Microsoft MEC compare with other mixed use property buildings in New York City?
The latest disclosures cover 395 mixed use property buildings in New York City, out of 48,310 buildings citywide. Its site EUI of 167.4 kBtu/ft² is about 81% above the average of 92.7 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 19.2 kgCO₂e/ft² is about 143% above the group average of 7.9 kgCO₂e/ft².
At 34,182 sq ft, it is about 85% below the average floor area of 224,815 sq ft for those buildings. It was built in 1925, 32 years earlier than the group's average year built (1958). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².
How has Microsoft MEC's energy performance changed over time?
BuildingCensus holds 3 New York City disclosures for Microsoft MEC, covering report years 2022–2024. Its ENERGY STAR score was 1 in both 2022 and 2023. Site EUI moved from 204.2 kBtu/ft² (2022) to 167.4 kBtu/ft² (2024), a 18% decrease. Reported emissions went from 534 tCO₂e to 656 tCO₂e over the same span (up 23%).
What does a site EUI of 167.4 kBtu/ft² mean?
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Microsoft MEC's 167.4 kBtu/ft² across 34,182 sq ft works out to about 5.7 billion Btu (1,677 MWh-equivalent) in 2024. Its source EUI of 466.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,662,955 kWh of electricity and 693 thousand gallons of water for the year.
Which law requires Microsoft MEC to report its energy use?
Microsoft MEC reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:23242619:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.
More mixed use property buildings in New York City
- 211-11 Northern Blvd· 34,050 sq ft · EUI 64.2 kBtu/ft²
- 209 East 118th Street - data· 34,044 sq ft · EUI 79.6 kBtu/ft²
- Cummins, Inc.· 33,800 sq ft · score 36 (D)
- 90 Bowery Enterprise LLC· 33,781 sq ft
- 123 - St. Gregory the Great-School (leased2018)· 33,756 sq ft · EUI 43.2 kBtu/ft²
- 415 West Broadway· 33,660 sq ft · EUI 34.5 kBtu/ft²
- Mixed Use Property buildings in New York City· 395 benchmarked
- All New York City benchmarked buildings· Local Law 84 (LL84)
- Most efficient large buildings in New York City
- Least efficient large buildings in New York City
- Biggest emitters in New York City
Frequently asked questions
What is Microsoft MEC's energy grade?
Microsoft MEC did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 167.4 kBtu/ft².
How much energy does Microsoft MEC use?
Its 2024 site energy-use intensity was 167.4 kBtu/ft² (466.5 kBtu/ft² source) across 34,182 sq ft, including 1,662,955 kWh of electricity.
What are Microsoft MEC's carbon emissions?
Microsoft MEC reported 656 tCO₂e of greenhouse-gas emissions (19.2 kgCO₂e/ft²) for 2024.
Where is Microsoft MEC?
Microsoft MEC is at 677 5th Avenue, in New York City, New York 10022. Its coordinates are 40.76063, -73.97566 (latitude, longitude), as published in the Energy and Water Data Disclosure file.
How big is Microsoft MEC and when was it built?
Microsoft MEC has 34,182 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1925 as its year built. It is classed as mixed use property.
Is Microsoft MEC covered by Local Law 84 (LL84)?
Yes — it appears in the 2024 Energy and Water Data Disclosure disclosure, which lists the buildings reporting under Local Law 84 (LL84).
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About this data
Source: Energy and Water Data Disclosure (Local Law 84 (LL84)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Microsoft MEC, New York City, New York — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/new-york-city/microsoft-mec-75eeb147 (data as of October 2, 2026).